@book{doi:10.1596/1813-9450-6872,
author = { Klaus Desmet Esteban Rossi-Hansberg },
title = {Analyzing Urban Systems: Have Megacities Become Too Large?},
publisher = {The World Bank},
year = {2014},
doi = {10.1596/1813-9450-6872},
address = {},
edition   = {},
URL = {https://elibrary.worldbank.org/doi/abs/10.1596/1813-9450-6872},
eprint = {https://elibrary.worldbank.org/doi/pdf/10.1596/1813-9450-6872}
}